9" question

[MaGiKaLsHoTs]

ok so i need new brake cylinders and i cant figure out where to measure to figure out what size i need...

all im asking is what or where should i measure to get the size of the drums?... i measured the outside of the drum and it came to 11.5 inchs, but theres no option for 11.5 inchs on bronco graveyard

should i measure inside the drums? or what?


thanks

 

[BONES]

Measure inside the drum across the center.

 

[MaGiKaLsHoTs]

k thanks

 

[COPPERHEAD85]

You have 11".
My 81 has 10".Thats the only 2 the parts store stock.
Replaced mine last week.